Gaelin Rosenwaks, marine scientist, filmmaker, and explorer, is no stranger to Shorewords listeners.  In June 2020 she talked about her passion for sperm whales that came from her experience as a two-year old who looked into the eye of a whale named Physty.  During Covid, she travelled several times to Dominica to swim with and photograph some of the sperm whales that congregate offshore.  The culmination of her trips to Dominica is a beautiful and interesting book about these ocean goliaths.  On Shorewords!, Gaelin talks with Lesley Ewing about the making of her book, many of the amazing feats of these mammals from the depths that they dive, to the size of their hearts, to their sleeping habits; and some of her favorite books.